openwrt新增自定义板卡信息

修改配置文件，新增自定义板卡信息
适用openwrt 版本 19.07.04

默认板卡配置，当前选择的是板卡为【MediaTek LinkIt Smart 7688】

 .config - OpenWrt Configuration                                                    
 ──────────────────────────────────────────────────────────────────────────────────                                      
         ┌─────────────────────── Target Profile ────────────────────────┐          
         │  Use the arrow keys to navigate this window or press the      │          
         │  hotkey of the item you wish to select followed by the <SPACE │          
         │  BAR>. Press <?> for additional information about this        │          
         │ ┌─────────────^(-)──────────────────────────────────────────┐ │          
         │ │         ( ) HILINK HLK7628N                               │ │          
         │ │         ( ) HiWiFi HC5661A                                │ │          
         │ │         ( ) HiWiFi HC5861B                                │ │          
         │ │         (X) MediaTek LinkIt Smart 7688                    │ │          
         │ │         ( ) MediaTek MT7628 EVB                           │ │          
         │ │         ( ) Mercury MAC1200R v2.0                         │ │          
         │ └─────────────v(+)──────────────────────────────────────────┘ │          
         ├───────────────────────────────────────────────────────────────┤          
         │                    <Select>      < Help >                     │          
         └───────────────────────────────────────────────────────────────┘

修改target/linux/ramips/image/mt76x8.mk文件，参考【LinkIt7688】配置文件，新增自定义板卡信息【LinkIt7688-eric】

define Device/LinkIt7688
  DTS := LINKIT7688
  IMAGE_SIZE := $(ralink_default_fw_size_32M)
  SUPPORTED_DEVICES := linkits7688 linkits7688d
  DEVICE_TITLE := MediaTek LinkIt Smart 7688
  DEVICE_PACKAGES:= kmod-usb2 kmod-usb-ohci uboot-envtools
endef
TARGET_DEVICES += LinkIt7688

# eric++ 新增自定义板卡配置
define Device/LinkIt7688-eric
  DTS := LINKIT7688-eric
  IMAGE_SIZE := $(ralink_default_fw_size_32M)
  SUPPORTED_DEVICES := linkits7688-eric linkits7688d
  DEVICE_TITLE := MediaTek LinkIt Smart 7688 eric
  DEVICE_PACKAGES:= kmod-usb2 kmod-usb-ohci uboot-envtools
endef
TARGET_DEVICES += LinkIt7688-eric

该配置选项，默认对应的设备树文件：LINKIT7688-eric.dts
（SUPPORTED_DEVICES :=LinkIt7688-eric，名字不对，会影响到luci升级模块固件检测机制）

此时menuconfig中可以选择新增的板卡设备

 .config - OpenWrt Configuration                                                    
 ──────────────────────────────────────────────────────────────────────────────────                                                                  
         ┌─────────────────────── Target Profile ────────────────────────┐          
         │  Use the arrow keys to navigate this window or press the      │          
         │  hotkey of the item you wish to select followed by the <SPACE │          
         │  BAR>. Press <?> for additional information about this        │          
         │ ┌─────────────^(-)──────────────────────────────────────────┐ │          
         │ │         ( ) HiWiFi HC5661A                                │ │          
         │ │         ( ) HiWiFi HC5861B                                │ │          
         │ │         ( ) MediaTek LinkIt Smart 7688                    │ │          
         │ │         (X) MediaTek LinkIt Smart 7688 eric               │ │          
         │ │         ( ) MediaTek MT7628 EVB                           │ │          
         │ │         ( ) Mercury MAC1200R v2.0                         │ │          
         │ └─────────────v(+)──────────────────────────────────────────┘ │          
         ├───────────────────────────────────────────────────────────────┤          
         │                    <Select>      < Help >                     │          
         └───────────────────────────────────────────────────────────────┘

新增设备树文件，复制target/linux/ramips/dts/LINKIT7688.dts，新建LINKIT7688-eric.dts

eric@eric-PC:~/Documents/work/openwrt_1907/target/linux/ramips/dts$ ls *7688*
LINKIT7688.dts
eric@eric-PC:~/Documents/work/openwrt_1907/target/linux/ramips/dts$ cp LINKIT7688.dts LINKIT7688-eric.dts 
eric@eric-PC:~/Documents/work/openwrt_1907/target/linux/ramips/dts$ ls *7688*
LINKIT7688.dts  LINKIT7688-eric.dts
eric@eric-PC:~/Documents/work/openwrt_1907/target/linux/ramips/dts$

对应的target/linux/ramips/base-files/etc/board.d/01_leds和02_network、package/boot/uboot-envtools/files/ramips等文件，可以不修改。因为其中判断分支是以标签【board_name=linkits7688】为准

target/linux/ramips/base-files/etc/board.d/01_leds：

linkits7688)
	ucidef_set_led_wlan "wifi" "wifi" "linkit-smart-7688:orange:wifi" "phy0tpt"
	;;

target/linux/ramips/base-files/etc/board.d/02_network：

	linkits7688)
		wan_mac=$(mtd_get_mac_binary factory 4)
		lan_mac=$(mtd_get_mac_binary factory 46)

package/boot/uboot-envtools/files/ramips：

linkits7688|\
miwifi-nano|\
sk-wb8|\
wsr-1166|\
wsr-600|\
zbt-wg2626)
	ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x1000" "0x10000"
	;;

标签linkits7688，原自target/linux/ramips/base-files/lib/ramips.sh中，判断依据"MediaTek LinkIt Smart 7688，由设备树决定

target/linux/ramips/base-files/lib/ramips.sh：

 machine=$(awk 'BEGIN{FS="[ \t]+:[ \t]"} /machine/ {print $2}' /proc/cpuinfo)

*"MediaTek LinkIt Smart 7688")
	name="linkits7688"
	;;

echo "$name" > /tmp/sysinfo/board_name
echo "$machine" > /tmp/sysinfo/model

查看cpuinfo:

root@OpenWrt:/# cat /proc/cpuinfo
system type             : MediaTek MT7688 ver:1 eco:2
machine                 : MediaTek LinkIt Smart 7688
processor               : 0
cpu model               : MIPS 24KEc V5.5
BogoMIPS                : 380.92
wait instruction        : yes
microsecond timers      : yes
tlb_entries             : 32
extra interrupt vector  : yes
hardware watchpoint     : yes, count: 4, address/irw mask: [0x0ffc, 0x0ffc, 0x0ffb, 0x0ffb]
isa                     : mips1 mips2 mips32r1 mips32r2
ASEs implemented        : mips16 dsp
Options implemented     : tlb 4kex 4k_cache prefetch mcheck ejtag llsc pindexed_dcache userlocal vint perf_cntr_intr_bit nan_legacy nan_2008 perf
shadow register sets    : 1
kscratch registers      : 0
package                 : 0
core                    : 0
VCED exceptions         : not available
VCEI exceptions         : not available

machine : MediaTek LinkIt Smart 7688，由设备树决定

model = "MediaTek LinkIt Smart 7688";

由以上逻辑可以看出，board_name = linkits7688
如果需要重新定义标签分支，则修改 ramips.sh 和设树mode，添加自己的标签分支即可，需要注意的是：对应的01_leds、02_network、ramips等依赖文件，需要同步添加标签分支。

target/linux/ramips/dts/LINKIT7688-eric.dts：

model = "Eric board V3.0";

target/linux/ramips/base-files/lib/ramips.sh：

	*"MediaTek LinkIt Smart 7688")
		name="linkits7688"
		;;
	*"Eric board V3.0")
		name="linkits7688-eric"
		;;

target/linux/ramips/base-files/etc/board.d/01_leds：

linkits7688)
	ucidef_set_led_wlan "wifi" "wifi" "linkit-smart-7688:orange:wifi" "phy0tpt"
	;;
linkits7688-eric)
	# eric++
	# ucidef_set_led_wlan "wifi" "wifi" "led-wifi" "phy0tpt"
	ucidef_set_led_netdev "wifi" "wifi" "linkit-smart-7688:orange:wifi" "wlan0"
	ucidef_set_led_netdev "lan" "lan" "linkit-smart-7688:orange:usb" "eth0"
	;;

target/linux/ramips/base-files/etc/board.d/02_network：

	linkits7688 | \
	....此处省略n行
	zte-q7)
		ucidef_add_switch "switch0"
		ucidef_add_switch_attr "switch0" "enable" "false"
		ucidef_set_interface_lan "eth0"
		;;
	linkits7688-eric)
		# 单网口
		# ucidef_add_switch "switch0"
		# ucidef_add_switch_attr "switch0" "enable" "false"
		# ucidef_set_interface_lan "eth0"
		# usb网卡
		# ucidef_set_interface_wan "eth1"

		# 多网口
		ucidef_add_switch "switch0" \
			"0:lan" "1:lan" "6t@eth0"
		ucidef_set_interface_wan "eth1"
		;;

	linkits7688-eric|\
	linkits7688)
		wan_mac=$(mtd_get_mac_binary factory 4)
		lan_mac=$(mtd_get_mac_binary factory 46)
		;;

package/boot/uboot-envtools/files/ramips：

linkits7688|\
linkits7688-eric|\
miwifi-nano|\
sk-wb8|\
wsr-1166|\
wsr-600|\
zbt-wg2626)
	ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x1000" "0x10000"
	;;

原文链接：https://blog.csdn.net/pyt1234567890/article/details/109352936